US ZIP Code 20678 Age & Gender Statistics (2024)

Total Population

12,752

Median Age

38.4

Male Median

36.1

Female Median

41.7

US ZIP Code 20678 Population Growth

Population trends in
Figure 1: Annual population growth trend for (2021–2024).

US ZIP Code 20678 Demographic Trend

Since 2021, the population of has changed by +2.7%%.

+2.7%% Growth

US ZIP Code 20678 Age & Gender Pyramid

Population pyramid for

Figure 2: Population distribution by age and gender for 2024.


US ZIP Code 20678 Historical Population Data

YearMedian AgePopulation
202438.412,752
202338.712,686
202238.512,874
202138.212,415

US ZIP Code 20678 Age Group Breakdown (2024)

Age CohortPercentage
Under 57.7%
5–1712.6%
18–2410.7%
25–3413.2%
35–5427.3%
55–6411.1%
65+17.2%

Dependency Ratios for US ZIP Code 20678

Total Dependency Ratio:
60.3
Youth Dependency:
32.7
Old-Age Dependency:
27.6

The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).



Age & Gender FAQs for US ZIP Code 20678

The median age in US ZIP Code 20678 is 38.4 years.

According to latest Census data, the total population of US ZIP Code 20678 is 12,752.

In US ZIP Code 20678, seniors (ages 65+) make up 17.2% of the population, while children under 18 represent 12.6%.

Based on historical data since 2021, the population in US ZIP Code 20678 has remained stable.
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